2660258 has 4 divisors (see below), whose sum is σ = 3990390. Its totient is φ = 1330128.

The previous prime is 2660237. The next prime is 2660291. The reversal of 2660258 is 8520662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1456849 + 1203409 = 1207^2 + 1097^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2660258.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665063 + ... + 665066.

2^2660258 is an apocalyptic number.

2660258 is a deficient number, since it is larger than the sum of its proper divisors (1330132).

2660258 is a wasteful number, since it uses less digits than its factorization.

2660258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330131.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2660258 is about 1631.0297360870. The cubic root of 2660258 is about 138.5610777282.

The spelling of 2660258 in words is "two million, six hundred sixty thousand, two hundred fifty-eight".